Fix annotation of promoted parameters in Fasta inference tests.

pkg/front_end/testcases/inference/future_then_conditional_4.dart

Index: pkg/front_end/testcases/inference/future_then_conditional_4.dart
diff --git a/pkg/front_end/testcases/inference/future_then_conditional_4.dart b/pkg/front_end/testcases/inference/future_then_conditional_4.dart
index c06a3e1a65c32b70c0ae0b6bc40db622aac8db59..3865bddc911b9c84234e05d3acbd9cfa6e43f0d3 100644
--- a/pkg/front_end/testcases/inference/future_then_conditional_4.dart
+++ b/pkg/front_end/testcases/inference/future_then_conditional_4.dart
@@ -18,19 +18,21 @@ void main() {
   MyFuture<bool> f;
   MyFuture<int> t1 = /*@promotedType=none*/ f.then(
       /*@returnType=Future<int>*/ (/*@type=bool*/ x) async =>
-          x ? 2 : await new MyFuture<int>.value(3));
+          /*@promotedType=none*/ x ? 2 : await new MyFuture<int>.value(3));
   MyFuture<int> t2 = /*@promotedType=none*/ f
       .then(/*@returnType=Future<int>*/ (/*@type=bool*/ x) async {
-    return /*info:DOWN_CAST_COMPOSITE*/ await x
+    return /*info:DOWN_CAST_COMPOSITE*/ await /*@promotedType=none*/ x
         ? 2
         : new MyFuture<int>.value(3);
   });
   MyFuture<int> t5 = /*@promotedType=none*/ f.then(
       /*info:INFERRED_TYPE_CLOSURE,error:INVALID_CAST_FUNCTION_EXPR*/
       /*@returnType=Object*/ (/*@type=bool*/ x) =>
-          x ? 2 : new MyFuture<int>.value(3));
+          /*@promotedType=none*/ x ? 2 : new MyFuture<int>.value(3));
   MyFuture<int> t6 = /*@promotedType=none*/ f.then(
       /*@returnType=FutureOr<int>*/ (/*@type=bool*/ x) {
-    return /*info:DOWN_CAST_COMPOSITE*/ x ? 2 : new MyFuture<int>.value(3);
+    return /*info:DOWN_CAST_COMPOSITE*/ /*@promotedType=none*/ x
+        ? 2
+        : new MyFuture<int>.value(3);
   });
 }